A block of material of mass m and specific heat c falls from height h and reaches speed v just before striking the ground.Its temperature is measured immediately after it strikes the ground.If we ignore any change in temperature owing to interaction with the air,the change in temperature of the block of material is

Question

Quizplus · Accepted Answer

The change in temperature of the block can be calculated using the formula:

ΔT = (mv^2)/(mc)

where m is the mass of the block, v is the velocity of the block just before it strikes the ground, and c is the specific heat of the material.

Since the height from which the block falls is not given, it is irrelevant to the calculation. The change in temperature is determined solely by the mass, velocity, and specific heat of the material.

Choice (a) and (b) are both correct answers as they are the same but in different scientific notations. Therefore, answer E, "Only (a) and (b) above are correct," is the best choice.

A Block of Material of Mass M and Specific Heat